How to initilize the size of rows in an jtable in run time

i am trying to retrieve data from a oracle database and display them in an jtable ,but i could not figure out how to increase the size of the table based on the number of records fetched in runtime. i also want to add checkbox for each enrty made in the jtable such that by cheching the box ,i could select the data and process it in futher frames. i use an netbean5 version for design.kindly give me giudence.

Best thing to do is write your own table model and a Cell Renderer for the check box.
Please follow the "How to use tables" tutorial.
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html

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